/Engine/Plugins/Editor/UVEditor/Source/UVEditor/Public/UVEditorToolkit.h
Called when another toolkit (such as a ed mode toolkit) is no longer being hosted in this asset editor toolkit.
virtual void OnToolkitHostingFinished ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IToolkit](API\Editor\EditorFramework\Toolkits\IToolkit) > & Toolkit )